{"id":"CVE-2026-43373","summary":"net: ncsi: fix skb leak in error paths","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet: ncsi: fix skb leak in error paths\n\nEarly return paths in NCSI RX and AEN handlers fail to release\nthe received skb, resulting in a memory leak.\n\nSpecifically, ncsi_aen_handler() returns on invalid AEN packets\nwithout consuming the skb. Similarly, ncsi_rcv_rsp() exits early\nwhen failing to resolve the NCSI device, response handler, or\nrequest, leaving the skb unfreed.","modified":"2026-05-28T03:54:49.197971508Z","published":"2026-05-08T14:21:23.875Z","database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/43xxx/CVE-2026-43373.json"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/553366c271479c0d571dd1bb5d1bcde4747fb82e"},{"type":"WEB","url":"https://git.kernel.org/stable/c/59962588197863d0d746879f193905c0c6b3df49"},{"type":"WEB","url":"https://git.kernel.org/stable/c/5c3398a54266541610c8d0a7082e654e9ff3e259"},{"type":"WEB","url":"https://git.kernel.org/stable/c/81d6aee32f8f7bbc175c05dbf61f4430bfb88c4a"},{"type":"WEB","url":"https://git.kernel.org/stable/c/87138dde2d6937b12b967f28fe598a7d59000ae4"},{"type":"WEB","url":"https://git.kernel.org/stable/c/9891d7f4f1ede473c54b49776ae07755083eef06"},{"type":"WEB","url":"https://git.kernel.org/stable/c/b70c4e5e711931cdd56e6e905737b72f1e649189"},{"type":"WEB","url":"https://git.kernel.org/stable/c/fef5aa6e3bcf3c8053307642663a63b7362d7552"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/43xxx/CVE-2026-43373.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-43373"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"138635cc27c9737f940c3aa80912ff7a61c825af"},{"fixed":"9891d7f4f1ede473c54b49776ae07755083eef06"},{"fixed":"fef5aa6e3bcf3c8053307642663a63b7362d7552"},{"fixed":"81d6aee32f8f7bbc175c05dbf61f4430bfb88c4a"},{"fixed":"59962588197863d0d746879f193905c0c6b3df49"},{"fixed":"553366c271479c0d571dd1bb5d1bcde4747fb82e"},{"fixed":"b70c4e5e711931cdd56e6e905737b72f1e649189"},{"fixed":"87138dde2d6937b12b967f28fe598a7d59000ae4"},{"fixed":"5c3398a54266541610c8d0a7082e654e9ff3e259"}]}],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-43373.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"4.8.0"},{"fixed":"5.10.253"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.11.0"},{"fixed":"5.15.203"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.16.0"},{"fixed":"6.1.167"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.2.0"},{"fixed":"6.6.130"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.7.0"},{"fixed":"6.12.78"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.13.0"},{"fixed":"6.18.19"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.19.0"},{"fixed":"6.19.9"}]}],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-43373.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}]}